2009 9th International Conference on Numerical Simulation of Optoelectronic Devices最新文献

{"title":"Simulation on gain recovery of quantum dot semiconductor optical amplifiers by rate equation","authors":"J. Xiao, Yuede Yang, Yongzhen Huang","doi":"10.1109/NUSOD.2009.5297225","DOIUrl":"https://doi.org/10.1109/NUSOD.2009.5297225","url":null,"abstract":"The gain recoveries in quantum dot semiconductor optical amplifiers are numerically studied by rate equation models. Similar to the optical pump-probe experiment, the injection of double optical pulses is used to simulate the gain recovery of a weak continuous signal for the QD SOAs. The gain recoveries are fitted by a response function with multiple exponential terms. For the pulses duration of 10 ps, the gain recovery can be described by three exponential terms with the time constants, and for the pulse with the width of 150 fs, the gain recovery can be described by two exponential terms, the reason is that the short pulse does not consume lot of carriers.","PeriodicalId":120796,"journal":{"name":"2009 9th International Conference on Numerical Simulation of Optoelectronic Devices","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131091484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"VLSI photonics: Science and engineering of micro/nano-scale high-density photonic integration","authors":"El-Hang Lee","doi":"10.1109/NUSOD.2009.5297197","DOIUrl":"https://doi.org/10.1109/NUSOD.2009.5297197","url":null,"abstract":"This paper presents an overview of our work on the theory, design, fabrication, and integration of micro/nano-scale optical devices as applicable for all-optical generic and application-specific VLSI photonic integration. The micro/nano-optical devices are designed to perform the functions of collecting, storing, transporting, processing, switching, routing, and distributing optical signals on chips. The integrated optical components include micro/nano-scale optical waveguides, switches, modulators, sensors, directional couplers, multi-mode interference devices, micro-ring resonators, photonic crystal devices, and plasmonic devices made of polymer, silicon and semiconductor materials. The paper discusses scientific and engineering issues of miniaturizing and integrating micro/nano-scale photonic devices of small and ultra-small dimensions to a very large scale integration density as applicable for specific functions. Scientific and engineering issues are examined and examples of progresses are presented.","PeriodicalId":120796,"journal":{"name":"2009 9th International Conference on Numerical Simulation of Optoelectronic Devices","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125855012","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Electroabsorptive double ring resonators for wavelength switching applications","authors":"S. Ravindran, Y. T. Lee, K. Alameh","doi":"10.1109/NUSOD.2009.5297232","DOIUrl":"https://doi.org/10.1109/NUSOD.2009.5297232","url":null,"abstract":"The design and analysis of series-coupled double ring resonators with multiple quantum wells as the light guiding medium for wavelength switching applications will be presented. Switching is realized by changing the absorption of the rings. The output intensity at the output port and drop port of the resonator is calculated as a function of device geometry. A theoretical model for the switch which incorporates the change in absorption coefficient due to the applied electric field is presented. It is found that the switching characteristics of the device strongly depend on quantum well and material parameters.","PeriodicalId":120796,"journal":{"name":"2009 9th International Conference on Numerical Simulation of Optoelectronic Devices","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115310484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An integrated 4-f-imaging-based reconfigurable optical add-drop multiplexer employing an Opto-VLSI processor","authors":"M. Shen, K. Alameh, Y. T. Lee","doi":"10.1109/NUSOD.2009.5297192","DOIUrl":"https://doi.org/10.1109/NUSOD.2009.5297192","url":null,"abstract":"A novel integrated reconfigurable optical add-drop multiplexer (RODAM) structure is proposed and demonstrated experimentally. The ROADM employs an interface substrate that enables the integration of a fiber collimator array and an Opto-VLSI processor to realise a 4-f imaging system through optical beam steering. Experimental results demonstrate the principle of add/drop multiplexing with crosstalk of less than −27dB and insertion loss of less than 8dB over the C-band.","PeriodicalId":120796,"journal":{"name":"2009 9th International Conference on Numerical Simulation of Optoelectronic Devices","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115019965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mesh-free spectral method analysis of optical waveguides and wave propagation","authors":"F. Alharbi, J. Scott","doi":"10.1109/NUSOD.2009.5297200","DOIUrl":"https://doi.org/10.1109/NUSOD.2009.5297200","url":null,"abstract":"A new, fast, and efficient full vectorial multi-domain spectral method (MDSM) to simulate optical devices is presented. The presented method is mesh-free and is used for modal analysis of optical waveguides and to simulate optical wave propagation and scattering in two dimensional structures. As common to spectral methods, the presented method is very fast and accurate. Simulations of some complex structures were performed in less than a second using personal computer.","PeriodicalId":120796,"journal":{"name":"2009 9th International Conference on Numerical Simulation of Optoelectronic Devices","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121820197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Title page","authors":"Nusod, Yong-Tak Lee","doi":"10.1109/MICRO.2012.1","DOIUrl":"https://doi.org/10.1109/MICRO.2012.1","url":null,"abstract":"(2015) Forearm oxygenation and blood flow kinetics during a sustained contraction in multiple ability groups of rock climbers. Disclaimer The University of Gloucestershire has obtained warranties from all depositors as to their title in the material deposited and as to their right to deposit such material. The University of Gloucestershire makes no representation or warranties of commercial utility, title, or fitness for a particular purpose or any other warranty, express or implied in respect of any material deposited. The University of Gloucestershire makes no representation that the use of the materials will not infringe any patent, copyright, trademark or other property or proprietary rights. The University of Gloucestershire accepts no liability for any infringement of intellectual property rights in any material deposited but will remove such material from public view pending investigation in the event of an allegation of any such infringement. Forearm oxygenation and blood flow kinetics during a sustained contraction in multiple ability groups of rock climbers Running head: Haemodynamic kinetics in elite rock climbers Abstract Currently the physiological mechanisms which allow elite level climbers to maintain intense isometric contractions for prolonged periods of time are unknown. Furthermore, it is unclear whether blood flow or muscle oxidative capacity best governs performance. This study aimed to determine the haemodynamic kinetics of two forearm flexor muscles in three ability groups of rock climbers. Thirty-eight male participants performed a sustained contraction at 40% of MVC until volitional fatigue. Oxygen saturation and blood flow was assessed using near infrared spectroscopy and Doppler ultrasound. Compared to control, intermediate and advanced groups, the elite climbers had a significantly (p< 0.05) higher strength-to-weight ratio (MVC/N), de-oxygenated the flexor digitorum profundus significantly (p< 0.05) more O2%·s-1 respectively). Furthermore, elite climbers de-oxygenated the flexor carpi radialis significantly (p< 0.05) more, and at a greater rate than the intermediate group (36.5 vs. 14.6% O2 and 0.43 vs. 0.1O2%·s-1 respectively). However, there were no significant differences in total forearm ∆ blood flow. An increased MVC/N is not associated with greater blood flow occlusion in elite climbers therefore, oxidative capacity may be more important for governing performance.","PeriodicalId":120796,"journal":{"name":"2009 9th International Conference on Numerical Simulation of Optoelectronic Devices","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126638527","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Welcome to NUSOD 2009","authors":"","doi":"10.1109/nusod.2009.5297186","DOIUrl":"https://doi.org/10.1109/nusod.2009.5297186","url":null,"abstract":"","PeriodicalId":120796,"journal":{"name":"2009 9th International Conference on Numerical Simulation of Optoelectronic Devices","volume":"142 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130959357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}